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Mesh fencing: Zenith SR3

  • Product information

    Heras Zenith high security fencing rate range includes Zenith SR1, Zenith SR2 and Zenith SR3. Each Zenith system has been designed to meet a range of security needs and has been rigorously tested by the Building Research Establishment to gain the necessary security ratings (SR) to meet industry standards. Zenith SR3 is the third level of security rated fencing which is approved for government use. Zenith SR3 is used to protect the most critical assets such as high security areas within power stations, research centres, oil and gas terminals, military and utility sites. It may be used as additional protection for sites that already have SR1 or SR2 perimeter protection.

    Zenith SR3 is combination of Zenith SR1 and Zenith SR2, where a single skin fence is located just in front of a double skin fence creating a gap to resist and significantly delay a sustained attack. Zenith SR3 must be clamped or buried into the ground, and this special foundation provides extra protection in the ground against unwanted visitors.

    The system offers a high level of protection against vandalism, intrusion and terrorist activity thanks to the combination of its anti-climbing 358 mesh system, secure foundations and security toppings, such as barbed wire. Zenith SR3 offers a more comprehensive solution where organisations want to protect their most critical assets from deliberate forced entry of protected premises using bodily force and a selection of attack options for example, short axe, chisels, crowbar, gas torch etc.

    Zenith fencing is easy to install thanks to its prefabricated panels. These are welded together in our factory in Doncaster, forming a more solid welding construction that is designed to last for years. Installation requires just 11 fixings per post, which makes it quick and easy to install, but it’s also aesthetically pleasing.

    Each Zenith system can be enhanced with a Perimeter Intrusion Detection System (PIDS).

  • Specification

    Q40 Fencing and Gates
    To be read with Preliminaries/General conditions.

    • Manufacturer: Heras UK Fencing Systems, Herons Way, Carr Hill, Doncaster, DN4 8WA
     Tel: 01302 364551 Fax: 01302 322401
     E-mail: Web:

    – Nominal Height: Zenith 300 (3000 mm) + 300mm buried below ground.
    – Nominal Panel Width: 2515mm
    – Mesh and wire: Welded mesh spacing 12.7mm vertical x 76.2mm horizontal x 4mm vertical and 4mm horizontal wires – Double Skin to the rear of the post with an additional single skin of Zenith to the front face of site.
    – Finish: Galvanised & polyester powder coated Green RAL 6005/Black RAL9005.

    • POSTS: RHS
    – Rectangular hollow section: 120 x 60 x 5mm
    – Nominal Post centres: 2450mm
    – Finish: Galvanised & polyester powder coated Green RAL 6005/Black RAL9005.

    • OTHER:
    • Method of setting posts: In concrete foundations to comply with the design loading requirements specified by manufacturers technical specifications for this category of fence.
    • Conformity: 
    – Zenith 1.8m/2.0m/2.4m satisfies the requirements for Category 1 (General Purpose),  Category 2 (Security), Zenith 3.0m/4.2m/5.2m/5.2mMS also satisfies the requirements for Category 3 (High Security) and Category 4 (Extra High Security) as prescribed by BS 1722 Part 14 – Open Mesh Steel Panel Fences.
    – Upon receipt on site, or during storage off site, all care to be taken to ensure that no damage is incurred and that all precautions are taken against vandalism or theft.

    • Set out and erect fencing:
    – As shown on drawings
    – Panels that are cut on site are to be made good using a zinc-etch primer paint, followed by a top coat of 2 pack polyurethane repair paint.
             – with correct fixings and all components securely fixed.

    • The contractor shall employ experienced installers and provide qualified supervision to complete works as specified by the manufacturer for this category of fence.
    • For information contact: Heras UK Fencing Systems, Herons Way, Carr Hill, Doncaster, DN4 8WA
     Tel: 01302 364551 Fax: 01302 322401

    • Holes: Excavate neatly and with vertical sides.
    • Concrete mix: GEN1 or ST2 – to BS EN 206-1 using 20mm nominal size graded aggregates.
    – Alternative for small batch: the mix should not be leaner by mass than 1 part cement to 10 parts 20mm nominal graded aggregates.
    • All concrete should be thoroughly compacted prior to the initial set.
    • Exposed concrete foundations
     – Filling: Compact until are bubbles cease to appear on the upper surface.
     – Finishing: Weathered to shed water and trowelled smooth.

  • LPCB

  • Galvanization

  • Downloads

    Installation manual Zenith SR3Technical drawing Zenith SR3